I've spent ages drawing the Samson C02 circuit directly from the pcb. Here it is for any who wish to use it. The only things i werent able to identify were the 2 SMD caps. This diagram is hand drawn for now, if i get time later i'll do it properly in CAD software.
I have a few of these mics, and one of them is noisy, which im trying to fix. So far, i've only replaced Q2 and Q3, which hasnt fixed it. Currently sourcing 9.1V Zener and 2SK660 etc..